CN105976783A - Data signal driving method and driving device - Google Patents
Data signal driving method and driving device Download PDFInfo
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- CN105976783A CN105976783A CN201610574601.2A CN201610574601A CN105976783A CN 105976783 A CN105976783 A CN 105976783A CN 201610574601 A CN201610574601 A CN 201610574601A CN 105976783 A CN105976783 A CN 105976783A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
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- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
The invention discloses a data signal driving method which is applied to a display panel. The display panel comprises a display area and a fan-out area. The fan-out area is provided with connecting lines. Each connecting line is interconnected with a data line. The method comprises the steps that reference voltage is inputted to the connecting lines so that current in the connecting lines is acquired; the middlemost connecting line of the fan-out area is set as the first connecting line, and resistance of the second to the Nth connecting lines is respectively calculated with the first connecting line acting as a reference basis; data signal voltage is inputted to the connecting lines; and compensation voltage is respectively inputted to the second to the Nth connecting lines according to data signal voltage and the resistance of the second to the Nth connecting lines so that current in all the connecting lines is enabled to be equal after data signal voltage and compensation voltage are applied, wherein the Nth connecting line refers to the connecting line of the very edge of the fan-out area, and N is an integer greater than 2. The invention also discloses a driving device applying the data signal driving method.
Description
Technical field
The present invention relates to display technology field, particularly to a kind of data signal driving method and drive dress accordingly
Put.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD), for the display device of planar ultra-thin, it is by necessarily
The colour of quantity or monochrome pixels composition, be positioned over light source or reflecting surface front.Liquid crystal display power consumption is the lowest, and has
High image quality, volume feature little, lightweight, the most extremely everybody favors, and becomes the main flow of display.Liquid crystal display is at present
Being main with thin film transistor (TFT) (Thin Film Transistor, TFT) liquid crystal display, display panels is liquid crystal display
Primary clustering, display panels generally comprises the color membrane substrates and tft array substrate being oppositely arranged and is clipped in two substrates
Between liquid crystal layer.
The driving of display floater is by gate drive apparatus and data driven unit each height picture in display floater respectively
Element provides scanning signal and data signal, and the pressure reduction between different voltage data signals electrode voltage together causes liquid crystal
The anglec of rotation is different thus forms the display of the difference of brightness, i.e. liquid crystal panel and forms different GTGs.Display floater includes showing
Show region and fan-out area, described viewing area is provided with data wire, described fan-out area is provided with connecting line, Mei Yilian
Wiring is connected with each other with a data wire.The data signal that data driven unit provides is input to number by the connecting line of fan-out area
According in line, pixel is charged.
In display floater designs, the edge of one group of fan-out area and middle connecting line resistance difference are bigger.Due to
The resistance difference of fan-out area is too big, and voltage data signal pressure drop on each connecting line of fan-out area is different, is input to
Voltage data signal in data wire is inconsistent, causes when display floater shows, the mid portion of display floater and both sides
Separate existing difference, produce colour mixture colour cast or speck, reduce display quality, reduce the display quality of display floater.
Summary of the invention
In view of the deficiencies in the prior art, the invention provides a kind of data signal driving method and driving means, according to
The resistance difference of the connecting line of fan-out area, respectively to each connecting line input one compensation voltage, so that voltage data signal exists
It is input to during each data wire reach unanimity, improves the display quality of display floater.
To achieve these goals, present invention employs following technical scheme:
A kind of data signal driving method, is applied to display floater, and described display floater includes viewing area and fanout area
Territory, is provided with data wire in described viewing area, be provided with connecting line, each connecting line and a data wire in described fan-out area
Being connected with each other, wherein, the method includes: input a reference voltage to described connecting line, obtains the electric current in described connecting line；If
Putting the middle connecting line in described fan-out area is the 1st article of connecting line, with the 1st article of connecting line as basis reference, makes the 1st article of connection
The value of the resistance of line is zero, according to the computing formula of the electric current of each connecting line, with reference voltage for middle equivalent, counts respectively
Calculate and obtain the 2nd to the resistance of N article of connecting line；To described connecting line input data signal voltage；According to described data signal electricity
Pressure and the 2nd is to the resistance of N article of connecting line, respectively to the 2nd to the N article connecting line input one compensation voltage, so that applying
After described voltage data signal and described compensation voltage, the electric current in each connecting line is equal；Wherein, the N article connecting line refers to
The connecting line at the edge of described fan-out area, N is the integer more than 2.
Wherein, the 2nd includes to the acquisition methods of the resistance of N article of connecting line: input a reference voltage to described connecting line
VS, obtain the electric current I of the 1st article of connecting line10For:Obtain the electric current of nth bar connecting line
In0For:Wherein, RF1Represent the resistance of the 1st article of connecting line, RFnRepresent that nth bar connects
The resistance of line, RDRepresent the resistance of each data wire；According to formula (1-1) and (1-2), make RF1Value be 0, with VSFor centre
Equivalent, calculates Wherein, n=2,3 ..., N-1, N.
Wherein, the 2nd to N article of connecting line compensate voltage acquisition methods include: to described connecting line input data letter
Number voltage Vd, to nth bar connecting line input offset voltage Vxn；The now electric current I of the 1st article of connecting line11For:The electric current I of nth bar connecting linen1For: According to
Formula (2-1) and (2-2), make electric current I11=In1, and RF1Value be 0, calculateWill
Formula (1-3) substitutes into formula (2-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
Wherein, the 2nd includes to the acquisition methods of the resistance of N article of connecting line: input a reference voltage to described connecting line
VS, obtain the electric current I of the 1st article of connecting line10For:Obtain the electric current of N article of connecting line
IN0For:Wherein, RF1Represent the resistance of the 1st article of connecting line, RFNRepresent the N article even
The resistance of wiring, RDRepresent the resistance of each data wire；According to formula (3-1) and (3-2), make RF1Value be 0, with VSIn for
Between equivalent, calculateThe electricity of nth bar connecting line is calculated according to below equation (3-4)
Resistance RFn:Wherein, n=2,3 ..., N-1, N.
Wherein, the 2nd to N article of connecting line compensate voltage acquisition methods include: to described connecting line input data signal
Voltage Vd, to nth bar connecting line input offset voltage Vxn；The now electric current I of the 1st article of connecting line11For:The electric current I of nth bar connecting linen1For: According to
Formula (4-1) and (4-2), make electric current I11=In1, and RF1Value be 0, calculate
Formula (3-4) is substituted into formula (4-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
Another aspect of the present invention is to provide a kind of data signal driving means, for providing data letter to display floater
Number, described display floater includes viewing area and fan-out area, is provided with data wire, described fan-out area in described viewing area
In be provided with connecting line, each connecting line and a data wire and be connected with each other, wherein, define the connection that described fan-out area is middle
Line is the 1st article of connecting line, and the connecting line at edge, described fan-out area is the N article connecting line, described data signal driving means
Including: data signal driver, for described connecting line input reference voltage or voltage data signal；Electric current acquisition module,
For obtaining the electric current in described connecting line；Resistance calculations module, for the 1st article of connecting line as basis reference, makes the 1st article of company
The value of the resistance of wiring is zero, according to the computing formula of the electric current of each connecting line, with reference voltage for middle equivalent, respectively
Calculate and obtain the 2nd to the resistance of N article of connecting line；Voltage compensation module, for according to described voltage data signal and the 2nd to
The resistance of N article of connecting line, respectively to the 2nd to the N article connecting line input one compensation voltage, so that applying described data signal
After voltage and described compensation voltage, the electric current in each connecting line is equal；Wherein, N is the integer more than 2.
Wherein, described resistance calculations module acquisition the 2nd includes to the process of the resistance of N article of connecting line: described driving fills
Putting when starting first, described data signal driver inputs a reference voltage V to described connecting lineS, described electric current acquisition module
Obtain the electric current I of the 1st article of connecting line10For:Obtain the electric current I of nth bar connecting linen0
For:Wherein, RF1Represent the resistance of the 1st article of connecting line, RFnRepresent nth bar connecting line
Resistance, RDRepresent the resistance of each data wire；Described resistance calculations module, according to formula (1-1) and (1-2), makes RF1Value
It is 0, with VSFor middle equivalent, calculateWherein, n=2,3 ..., N-1, N.
Wherein, the determination method compensating voltage that described voltage compensation module inputs to the 2nd to the N article connecting line includes:
When described driving means normally works, described data signal driver is to described connecting line input data signal voltage Vd, set
Described voltage compensation module is to nth bar connecting line input offset voltage Vxn；The now electric current I of the 1st article of connecting line11For:The electric current I of nth bar connecting linen1For:According to
Formula (2-1) and (2-2), make electric current I11=In1, and RF1Value be 0, calculateBy formula
(1-3) substitute into formula (2-3), draw the compensation voltage V that nth bar connecting line inputsxnFor:
Wherein, described resistance calculations module acquisition the 2nd includes to the process of the resistance of N article of connecting line: described driving fills
Putting when starting first, described data signal driver inputs a reference voltage V to described connecting lineS, described electric current acquisition module
Obtain the electric current I of the 1st article of connecting line10For:Obtain the electric current I of N article of connecting lineN0
For:Wherein, RF1Represent the resistance of the 1st article of connecting line, RFNRepresent the N article connecting line
Resistance, RDRepresent the resistance of each data wire；Described resistance calculations module, according to formula (3-1) and (3-2), makes RF1Value
It is 0, with VSFor middle equivalent, calculateIs calculated further according to below equation (3-4)
The resistance R of n bar connecting lineFn:Wherein, n=2,3 ..., N-1,
N。
Wherein, the determination method compensating voltage that described voltage compensation module inputs to the 2nd to the N article connecting line includes:
When described driving means normally works, described data signal driver is to described connecting line input data signal voltage Vd, set
Described voltage compensation module is to nth bar connecting line input offset voltage Vxn；The now electric current I of the 1st article of connecting line11For:The electric current I of nth bar connecting linen1For:According to
Formula (4-1) and (4-2), make electric current I11=In1, and RF1Value be 0, calculateBy public affairs
Formula (3-4) substitutes into formula (4-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
The data signal driving method of embodiment of the present invention offer and driving means, first calculate according to reference voltage and obtain
Take the resistance of each connecting line of fan-out area, according to the resistance difference of the connecting line of fan-out area, respectively to each connecting line
Input one compensation voltage, so that voltage data signal reaches unanimity when being input to each data wire, improves the aobvious of display floater
Show quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the liquid crystal display that the embodiment of the present invention provides；
Fig. 2 is connecting line and the interconnective equivalent circuit diagram of data wire；
Fig. 3 is the structural representation of the data signal driving means that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, the concrete reality to the present invention below in conjunction with the accompanying drawings
The mode of executing is described in detail.The example of these preferred implementations is illustrated in the accompanying drawings.Shown in accompanying drawing and according to
The embodiments of the present invention that accompanying drawing describes are merely exemplary, and the present invention is not limited to these embodiments.
Here, also, it should be noted in order to avoid having obscured the present invention because of unnecessary details, the most only
Show and according to the closely-related structure of the solution of the present invention and/or process step, and eliminate little with relation of the present invention
Other details.
Present embodiments provide a kind of liquid crystal display, as it is shown in figure 1, described liquid crystal display include display floater 10,
Data signal driving means 20, signal driving means 30 and time schedule controller 40.Wherein, described time schedule controller 40 is used
In providing timing control signal to data signal driving means 20 and signal driving means 30, and also drive to data signal
Dynamic device 20 sends picture signal to be shown.Described data signal driving means 20 receives according to from described time schedule controller 40
To timing control signal and picture signal to be shown generate corresponding data signal be supplied to described display floater 10, described
Signal driving means 30 generates according to the timing control signal received from described time schedule controller 40 and scans letter accordingly
Number it is supplied to described display floater 10.
Wherein, described display floater 10 includes viewing area 10a and fan-out area 10b.Described viewing area 10a is provided with
Crisscross a plurality of data lines D and multi-strip scanning line S, it is (attached that the intersection region of data wire D and scan line S is formed with sub-pixel
Not shown in figure).Described fan-out area 10b is provided with connecting line L, each connecting line L and a data wire D be connected with each other, number
The data signal provided according to driving means 20 is input in data wire D carry out sub-pixel by the connecting line L of fan-out area 10b
Charging.
Wherein, equivalent circuit diagram as shown in Figure 2, defining described connecting line middle for fan-out area 10b is the 1st article of company
Wiring L1, from the 1st article of connecting line L1Nth bar connecting line L it is followed successively by respectively towards both sides of the edgen.Wherein, n=2,3 ..., N-1,
N, N are the integer more than 2.As n=N, the N article connecting line LNConnecting line for described fan-out area 10b edge.Further
Ground, as in figure 2 it is shown, resistance RF1Represent the 1st article of connecting line L1Resistance, RFnRepresent nth bar connecting line LnResistance, RFNRepresent the
N bar connecting line LNResistance, RDRepresent the resistance of each data wire D.Owing to the length of connecting line is different, resistance RF1～RFn～RFN
Between be not mutually equal.In the present invention, when calculating resistance, it is with the 1st article of connecting line L1For basis reference, therefore,
In the following computing formula related to, resistance RF1Value be zero.
Differ to solve connecting line L length in the 10b of fan-out area and cause display floater that colour mixture colour cast or bright occurs
The problem of speckle, provides a kind of data signal driver and corresponding driving method thereof in the present embodiment.Such as Fig. 3 institute
Showing, described data signal driving means 20 includes data signal driver 201, electric current acquisition module 202, resistance calculations module
203 and voltage compensation module 204.
Wherein, described data signal driver 201 is mainly used for described connecting line L input data signal voltage, with
Realize providing data signal to display floater 10.Described electric current acquisition module 202 is then for obtaining the electricity in described connecting line L
Stream.The circuit that described resistance calculations module 203 obtains according to described electric current acquisition module 202, calculates the electricity of each connecting line L
Resistance.Described voltage compensation module 204 is then for the 2nd to the N article connecting line input one compensation voltage, so that applying data letter
Number voltage and after compensating voltage, the electric current in each connecting line L is equal.
Wherein, described data signal driver 201 is that the structure with chip on film chip (Chip On Film, COF) is real
Existing.Electric current acquisition module 202 and resistance calculations module 203 and voltage compensation module 204 can also be provided in same flip
In thin film chip, it is also possible to be to be provided separately within other printed circuit board (PCB).
Below in conjunction with Fig. 2 and Fig. 3, the driving method of as above data signal driver 20 is discussed in detail,
This driving method specifically includes:
(1), input a reference voltage to described connecting line, obtain the electric current in described connecting line.Specifically, described
When data signal driving means 20 starts first, described data signal driver 201 inputs a reference voltage to each connecting line L
VS, described electric current acquisition module 202 obtains the 1st article of connecting line L1Electric current I10For:Obtain
Take nth bar connecting line LnElectric current In0For:
(2), according to the computing formula of the electric current of each connecting line, with reference voltage for middle equivalent, acquisition is calculated respectively
2nd to the resistance of N article of connecting line.Specifically, described resistance calculations module 203, according to formula (1-1) and (1-2), makes RF1's
Value is 0, with VSFor middle equivalent, calculate Wherein, n value successively be 2,
3 ..., N-1, N, calculate successively and obtain the 2nd to the resistance of N article of connecting line.
(3), to described connecting line input data signal voltage.Specifically, the described normal work of data signal driving means 20
When making, described data signal driver 201 is to described connecting line L input data signal voltage Vd。
(4), according to described voltage data signal and the 2nd to the resistance of N article of connecting line, respectively to the 2nd to the N article
Connecting line input one compensation voltage.Specifically, described voltage compensation module 204 is to nth bar connecting line input offset voltage Vxn, with
Make applying described voltage data signal VdWith described compensation voltage VxnAfter, the electric current in each connecting line is equal.Compensate voltage
VxnDetermination method include:
Applying described voltage data signal VdWith described compensation voltage VxnAfter, the 1st article of connecting line L1Electric current I11For:Nth bar connecting line LnElectric current In1For: According to
Formula (2-1) and (2-2), make electric current I11=In1, and RF1Value be 0, calculateWill
Formula (1-3) substitutes into formula (2-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
Thus, described voltage compensation module 204 according to the result of calculation of formula (2-4) to nth bar connecting line LnInput is mended
Repay voltage VxnSo that applying described voltage data signal VdWith described compensation voltage VxnAfter, the electric current phase in each connecting line
Deng.
In another preferred embodiment, the driving method of described data signal driver 20 can also be by
According to following manner:
(1), input a reference voltage to described connecting line, obtain the electric current in described connecting line.Specifically, described
When data signal driving means 20 starts first, described data signal driver 201 inputs a reference voltage to each connecting line L
VS, described electric current acquisition module 202 obtains the 1st article of connecting line L1Electric current I10For:Obtain
Take the electric current I of N article of connecting lineN0For:
(2), according to the computing formula of the electric current of each connecting line, with reference voltage for middle equivalent, acquisition is calculated respectively
2nd to the resistance of N article of connecting line.Specifically, described resistance calculations module 203, according to formula (3-1) and (3-2), makes RF1's
Value is 0, with VSFor middle equivalent, calculate Further according to below equation (3-4)
Calculate the resistance R of nth bar connecting lineFn:Wherein, n=2,
3、…、N-1、N.The method is mainly applied less with the area of display floater, the situation of the negligible amounts of connecting line L.
(3), to described connecting line input data signal voltage.Specifically, the described normal work of data signal driving means 20
When making, described data signal driver 201 is to described connecting line L input data signal voltage Vd。
(4), according to described voltage data signal and the 2nd to the resistance of N article of connecting line, respectively to the 2nd to the N article
Connecting line input one compensation voltage.Specifically, described voltage compensation module 204 is to nth bar connecting line input offset voltage Vxn, with
Make applying described voltage data signal VdWith described compensation voltage VxnAfter, the electric current in each connecting line is equal.Compensate voltage
VxnDetermination method include:
Applying described voltage data signal VdWith described compensation voltage VxnAfter, the 1st article of connecting line L1Electric current I11For:Nth bar connecting line LnElectric current In1For: According to
Formula (4-1) and (4-2), make electric current I11=In1, and RF1Value be 0, calculateWill
Formula (3-4) substitutes into formula (4-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
Thus, described voltage compensation module 204 according to the result of calculation of formula (4-4) to nth bar connecting line LnInput is mended
Repay voltage VxnSo that applying described voltage data signal VdWith described compensation voltage VxnAfter, the electric current phase in each connecting line
Deng.
In sum, the data signal driving method of embodiment of the present invention offer and driving means, first according to benchmark
Voltage calculates the resistance of each connecting line obtaining fan-out area, according to the resistance difference of the connecting line of fan-out area, respectively to
Each connecting line input one compensation voltage, so that voltage data signal reaches unanimity when being input to each data wire, improves aobvious
Show the display quality of panel.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
The above is only the detailed description of the invention of the application, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from the application principle, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (10)
1. a data signal driving method, is applied to display floater, and described display floater includes viewing area and fan-out area,
Described viewing area is provided with data wire, described fan-out area is provided with connecting line, each connecting line and a data wire phase
Connect, it is characterised in that the method includes:
Input a reference voltage to described connecting line, obtain the electric current in described connecting line；
Arranging the middle connecting line in described fan-out area is the 1st article of connecting line, with the 1st article of connecting line as basis reference, makes the 1st
The value of the resistance of bar connecting line is zero, according to the computing formula of the electric current of each connecting line, with reference voltage for middle equivalent,
Calculate respectively and obtain the 2nd to the resistance of N article of connecting line；
To described connecting line input data signal voltage；
According to described voltage data signal and the 2nd to the resistance of N article of connecting line, respectively to the 2nd to the N article connecting line input
One compensates voltage, so that after applying described voltage data signal and described compensation voltage, the electric current in each connecting line is equal；
Wherein, the N article connecting line refers to the connecting line at the edge of described fan-out area, and N is the integer more than 2.
Data signal driving method the most according to claim 1, it is characterised in that the resistance of the 2nd to N article of connecting line
Acquisition methods includes:
A reference voltage V is inputted to described connecting lineS, obtain the electric current I of the 1st article of connecting line10For:
Obtain the electric current I of nth bar connecting linen0For: Wherein, RF1Represent the 1st article of connecting line
Resistance, RFnRepresent the resistance of nth bar connecting line, RDRepresent the resistance of each data wire；
According to formula (1-1) and (1-2), make RF1Value be 0, with VSFor middle equivalent, calculate
Wherein, n=2,3 ..., N-1, N.
Data signal driving method the most according to claim 2, it is characterised in that the compensation electricity of the 2nd to N article of connecting line
The acquisition methods of pressure includes:
To described connecting line input data signal voltage Vd, to nth bar connecting line input offset voltage Vxn；The now electricity of the 1st article of connecting line
Stream I11For:The electric current I of nth bar connecting linen1For:
According to formula (2-1) and (2-2), make electric current I11=In1, and RF1Value be 0, calculate
Formula (1-3) is substituted into formula (2-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
Data signal driving method the most according to claim 1, it is characterised in that the resistance of the 2nd to N article of connecting line
Acquisition methods includes:
A reference voltage V is inputted to described connecting lineS, obtain the electric current I of the 1st article of connecting line10For:
Obtain the electric current I of N article of connecting lineN0For: Wherein, RF1Represent the 1st article of connecting line
Resistance, RFNRepresent the resistance of N article of connecting line, RDRepresent the resistance of each data wire；
According to formula (3-1) and (3-2), make RF1Value be 0, with VSFor middle equivalent, calculate
The resistance R of nth bar connecting line is calculated according to below equation (3-4)Fn:
Wherein, n=2,3 ..., N-1, N.
Data signal driving method the most according to claim 4, it is characterised in that the compensation electricity of the 2nd to N article of connecting line
The acquisition methods of pressure includes:
To described connecting line input data signal voltage Vd, to nth bar connecting line input offset voltage Vxn；The now electricity of the 1st article of connecting line
Stream I11For:The electric current I of nth bar connecting linen1For:
According to formula (4-1) and (4-2), make electric current I11=In1, and RF1Value be 0, calculate
Formula (3-4) is substituted into formula (4-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
6. a data signal driving means, for providing data signal to display floater, described display floater includes viewing area
Territory and fan-out area, be provided with data wire in described viewing area, is provided with connecting line, each connecting line in described fan-out area
Being connected with each other with a data wire, wherein, defining the middle connecting line in described fan-out area is the 1st article of connecting line, described fan-out
The connecting line at edge, region is the N article connecting line, it is characterised in that described data signal driving means includes:
Data signal driver, for described connecting line input reference voltage or voltage data signal；
Electric current acquisition module, for obtaining the electric current in described connecting line；
Resistance calculations module, for the 1st article of connecting line as basis reference, the value making the resistance of the 1st article of connecting line is zero, root
According to the computing formula of the electric current of each connecting line, with reference voltage for middle equivalent, calculate respectively and obtain the 2nd to the N article connection
The resistance of line；
Voltage compensation module, for according to described voltage data signal and the 2nd to the resistance of N article of connecting line, respectively to the 2nd
To the N article connecting line input one compensation voltage, so that after applying described voltage data signal and described compensation voltage, each is even
Electric current in wiring is equal；
Wherein, N is the integer more than 2.
Data signal driving means the most according to claim 6, it is characterised in that described resistance calculations module obtains the 2nd
The process of resistance to N article of connecting line includes:
When described driving means starts first, described data signal driver inputs a reference voltage V to described connecting lineS, described
Electric current acquisition module obtains the electric current I of the 1st article of connecting line10For: Acquisition nth bar connects
The electric current I of linen0For:Wherein, RF1Represent the resistance of the 1st article of connecting line, RFnRepresent
The resistance of nth bar connecting line, RDRepresent the resistance of each data wire；
Described resistance calculations module, according to formula (1-1) and (1-2), makes RF1Value be 0, with VSFor middle equivalent, calculateWherein, n=2,3 ..., N-1, N.
Data signal driving means the most according to claim 7, it is characterised in that described voltage compensation module to the 2nd to
The determination method compensating voltage of the N article connecting line input includes:
When described driving means normally works, described data signal driver is to described connecting line input data signal voltage VdIf,
Fixed described voltage compensation module is to nth bar connecting line input offset voltage Vxn；The now electric current I of the 1st article of connecting line11For:The electric current I of nth bar connecting linen1For:
According to formula (2-1) and (2-2), make electric current I11=In1, and RF1Value be 0, calculate
Formula (1-3) is substituted into formula (2-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
Data signal driving means the most according to claim 6, it is characterised in that described resistance calculations module obtains the 2nd
The process of resistance to N article of connecting line includes:
When described driving means starts first, described data signal driver inputs a reference voltage V to described connecting lineS, described
Electric current acquisition module obtains the electric current I of the 1st article of connecting line10For: Obtain the N article connection
The electric current I of lineN0For:Wherein, RF1Represent the resistance of the 1st article of connecting line, RFNRepresent
The resistance of N article of connecting line, RDRepresent the resistance of each data wire；
Described resistance calculations module, according to formula (3-1) and (3-2), makes RF1Value be 0, with VSFor middle equivalent, calculateThe resistance R of nth bar connecting line is calculated further according to below equation (3-4)Fn:Wherein, n=2,3 ..., N-1, N.
Data signal driving means the most according to claim 9, it is characterised in that described voltage compensation module to the 2nd to
The determination method compensating voltage of the N article connecting line input includes:
When described driving means normally works, described data signal driver is to described connecting line input data signal voltage VdIf,
Fixed described voltage compensation module is to nth bar connecting line input offset voltage Vxn；The now electric current I of the 1st article of connecting line11For:The electric current I of nth bar connecting linen1For:
According to formula (4-1) and (4-2), make electric current I11=In1, and RF1Value be 0, calculate
Formula (3-4) is substituted into formula (4-3), draws the compensation voltage V that nth bar connecting line inputsxnFor:
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574601.2A CN105976783B (en) | 2016-07-20 | 2016-07-20 | Data-signal driving method and drive device |
| US15/309,747 US10062339B2 (en) | 2016-07-20 | 2016-08-03 | Data signal driving method, driving device and liquid crystal display device |
| PCT/CN2016/093127 WO2018014375A1 (en) | 2016-07-20 | 2016-08-03 | Data signal driving method and driving apparatus, and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574601.2A CN105976783B (en) | 2016-07-20 | 2016-07-20 | Data-signal driving method and drive device |
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| Publication Number | Publication Date |
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| CN105976783A true CN105976783A (en) | 2016-09-28 |
| CN105976783B CN105976783B (en) | 2018-03-20 |
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| CN201610574601.2A Active CN105976783B (en) | 2016-07-20 | 2016-07-20 | Data-signal driving method and drive device |
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| Country | Link |
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| US (1) | US10062339B2 (en) |
| CN (1) | CN105976783B (en) |
| WO (1) | WO2018014375A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978291A (en) * | 2017-12-29 | 2018-05-01 | 深圳市华星光电技术有限公司 | A kind of method of adjustment of drive signal |
| CN108257558A (en) * | 2018-01-31 | 2018-07-06 | 昆山国显光电有限公司 | A kind of driving compensation circuit, method and its display device |
| TWI684845B (en) * | 2018-10-09 | 2020-02-11 | 廣達電腦股份有限公司 | Voltage compensation system, method of compensating voltage drop and multi-node system |
| CN112951158A (en) * | 2021-02-18 | 2021-06-11 | 京东方科技集团股份有限公司 | Display driving method, display driving device and display device |
| CN114360456A (en) * | 2022-01-20 | 2022-04-15 | 集璞(上海)科技有限公司 | Drive circuit, light emitting diode drive chip, display panel and electronic equipment |
| WO2022267116A1 (en) * | 2021-06-23 | 2022-12-29 | Tcl华星光电技术有限公司 | Display apparatus and driving method therefor |
| WO2024131220A1 (en) * | 2022-12-23 | 2024-06-27 | 惠州华星光电显示有限公司 | Display device and driver |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112201165B (en) * | 2020-10-23 | 2021-12-28 | Tcl华星光电技术有限公司 | Display device and electronic apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105976783B (en) | 2018-03-20 |
| US20180151133A1 (en) | 2018-05-31 |
| WO2018014375A1 (en) | 2018-01-25 |
| US10062339B2 (en) | 2018-08-28 |
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